My son will need an engine for his automobile so we took a chance ,and all I am able to say is to date so very good .it was shipped in a very well timed fashion and whenever we acquired it in and connected and everything that that goes with https://httpsjdmengineforsalecomp54208.wikicorrespondent.com/6189821/not_known_details_about_https_jdmengineforsale_com_product_jdm_mazda_rx_7_fd_13b_rew_engine_for_sale